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Barbed wire - Wikipedia ... Barbed wire
Concertina wire - Wikipedia ... Concertina wire
A party line (multiparty line, shared service line, party wire) is a local loop telephone circuit that is shared by multiple telephone service subscribers. [1] [2] [3]Party line systems were widely used to provide telephone service, starting with the first commercial switchboards in 1878. [4]
Electrical telegraph
The Joseph F. Glidden House is located in the United States in the DeKalb County, Illinois city of DeKalb. It was the home to the famed inventor of barbed wire Joseph Glidden. The barn, still located on the property near several commercial buildings, is said to be where Glidden perfected his improved version of barbed wire which would ...
Signature. Jacob Haish (March 9, 1826 – February 19, 1926) was one of the first inventors of barbed wire. His type of barbed wire was in direct competition with the other barbed wire manufacturers in DeKalb, Illinois. He was a known carpenter and architect in DeKalb County and designed several prominent DeKalb homes. [1]
Joseph Farwell Glidden (January 18, 1813 – October 9, 1906) was an American businessman and farmer. He was the inventor of the modern barbed wire. In 1898, he donated land for the Northern Illinois State Normal School in DeKalb, Illinois, which was renamed as Northern Illinois University in 1957.
Wire obstacle. In the military science of fortification, wire obstacles are defensive obstacles made from barbed wire, barbed tape or concertina wire. They are designed to disrupt, delay and generally slow down an attacking enemy. During the time that the attackers are slowed by the wire obstacle (or possibly deliberately channelled into ...